Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b03718d14c2a01d…

MALICIOUS

PDF

78.2 KB Created: 2021-09-08 22:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0072f3bcbe5f33cfef298ae8496fcbf5 SHA-1: 13864671f5998eabbac392480067486d9909f545 SHA-256: 1b03718d14c2a01d9edc705a223e3fcd73ebe4184f64253b8fd4bdad37d856af
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which are part of a link farm designed to obscure the ultimate destination. One prominent URL suggests a lure related to a 'sportybet doubler hack apk', indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lawyerupsmart.com/tempimg/file/39803774254.pdf In PDF document text
    • http://mentor-tutor.com/newGroserLikeProject/uploads/files/bujer.pdfIn PDF document text
    • https://burgas-remonti.com/userfiles/file/81720297738.pdfIn PDF document text
    • http://benetalent.com/upload/files/45773068823.pdfIn PDF document text
    • http://narzedziascierne.eu/Upload/file/18658626953.pdfIn PDF document text
    • http://gurolmumcu.com/userfiles/file/perufamatupaxajivujuzabil.pdfIn PDF document text
    • https://nayyaralidada.net/alpha/ckfinder/userfiles/files/33798676206.pdfIn PDF document text
    • http://tvcsoltau.de/userfiles/file/sofatesosabobefinovak.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138875eb726f---8027221967.pdfIn PDF document text
    • https://redengewinnt.com/userfiles/file/54967752355.pdfIn PDF document text
    • http://webbuilders.com/files/file/zidawi.pdfIn PDF document text
    • https://soroptimist.be/oldsite/intranet/ckeditor/ckfinder/userfiles/images/files/jurufoj.pdfIn PDF document text
    • https://pasarantogel2.com/contents/files/60949757222.pdfIn PDF document text
    • https://toskov-yordanov.com/userfiles/file/wudajeteturigitupudebem.pdfIn PDF document text
    • http://lachambredechos.com/userfiles/file/41623568787.pdfIn PDF document text
    • http://www.azurwelcomeservices.com/userfiles/file/sokidotafid.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/45885887030.pdfIn PDF document text
    • https://telewebmarketing.com/FCKeditor/file/tiginopufoxiwiriluzonuraf.pdfIn PDF document text
    • http://eluvial.com/sites/all/sites/eluvial.com/files/jonomupu.pdfIn PDF document text
    • https://geelaboba.dswip.com/ci/userfiles/files/55336497626.pdfIn PDF document text
    • https://vinniescustoms.com/userfiles/files/23898066884.pdfIn PDF document text
    • https://inijariku.com/ckfinder/userfiles/files/13560848329.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=sportybet+doubler+hack+apkPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E4 19976 bytes
SHA-256: abe7cf36b3a902ea7adc6779c1d4e024f921ece90e4168ba1711252998caba68
font_01_sfnt_off0000fa5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5C 10768 bytes
SHA-256: 03afb1894a4bcbeddf1e6d891fbbee985b88e37726e4b7b2fefc4d5939be2a5f
font_02_sfnt_off0001131c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1131C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.